Oral composition
AssigneeUnilever Home & Personal Care USA, Division of Conopco, Inc.
InventorsAndrew Joiner, David William Thornthwaite, Philip Christopher Waterfield
Life of this patent
Estimating the term…
Abstract
An oral composition with an improved teeth whitening effect, comprising a first formulation comprising an effective amount of a peroxy amido phthalamide having the structural formula: 1 in which R is hydrogen or C1-C4 alkyl; n is 1 to 5; and X is C═O or SO2, wherein said first formulation has a pH of from 2 to 6 and a second formulation formulated such that when said second formulation is mixed with the first formulation the pH of the mixture is from 6.5 to 8.5.
Claims5
An oral composition with an improved teeth whitening effect, comprising a first formulation comprising an effective amount of a peroxy amido phthalamide having the structural formula:
- 4
- in which R is hydrogen or C1-C4 alkyl;
- n is 1 to 5;
- and X is C═O or SO2,
- wherein said first formulation has a pH of from 2 to 6
- and a second formulation formulated such that when said second formulation is mixed with the first formulation the pH of the mixture is from 6.5 to 8.5.
A method of whitening the teeth, said method comprising the steps of mixing a first formulation comprising an effective amount of a peroxy amido phthalamide having the structural formula:
- 5
- in which R is hydrogen or C1-C4 alkyl;
- n is 1 to 5;
- and X is C═O or SO2,
- wherein said first formulation has a pH of from 2 to 6
- with a second formulation formulated such that when said second formulation is mixed with the first formulation the pH of the mixture is from 6.5 to 8.5 and then contacting said mixture with the teeth for a predetermined duration before rinsing.
Dependencies are inferred from the claim text.